<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
{{ msg }}
<form method="post" action="/login">
        <input type="text" name="username"/>
        <input type="text" name="pwd"/>
        <input type="submit"/>
    </form>
</body>
</html>